Cornelius young



(No Model.) 2 Sheets-Sheet 1.

0.. YOUNG.

STUFF REGULATOR FOR PAPER MACHINES. No. 276,127. Patented Apr. 17,1883.

WM masses. Inv'e n1 0;.

N. PETERS. Mole-lithograph". Wnhingiml, D. C.

2 Sheets-Sheet 2.

(No Model.)

0. YOUNG.

STUFF REGULATOR POE PAPER MACHINES.

Patented Apr. 17.1883.

(Vii/masses N. PEYERS. Pholoiiflngmpher, Wnhinghn. 0.0

UNITED STATES PATENT OFFICE.

CORNELIUS YOUNG, OF SANDY HILL, NEW YORK, ASSIGNOR OF ON l-HALF TO HOWLAND 8t 00., OF SAME PLACE.

STUFF-REGULATOR FOR PAPER-MACHINES.

SPECIFICATION forming part of Letters Patent No. 276,127, dated April 17, 1883.

Application filed March lfi, 1383. (No model.)

1'0 all whom it may concern Be it known that I, Ooeunmns Yocue, a citizen of the United States, of Sandy Hill. in the county of Washington and State of New York, have invented certain new and useful Improvements in Stuff-Regulators for Paper- Machines; and I do hereby declare that the following is a full, clear, and exact description ofthe invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in paper-machines; and the objects of my invention are to regulate the flow of pulp or stuff from the stutf-box tothe machine proper, and to provide a convenient means of wholly discharging the contents of the stuff-box.

My invention consists of an improved float and mechanism through which it acts upon a gate to regulate the stuff-supply; also, of an improved gate adjustable upon a sliding support, and of another gate to discharge .the stud irom the stufl box when it is desired to empty the same; also, ofan improvement in the stulfbox, which consists in constructing the stuffcompartment narrower on the-inside at one end or side, and placing the outlet on that side.

Figure 1 is a perspective view of a stuff-box, showing my improvements. Fig. 2 is a vertical section taken at broken line a bin Fig. 1. Fig. 3is a perspective of the discharge-gate. Figs. 2 and 3 are on Sheet 2.

A is a box divided into three compartments by the partition B, which runs from one side of the box to the opposite side, and the partition 0, which extends from the partition B to one side of the box. The larger compartment is provided with an aperture in the bottom, nearits center,through which the stufl'is forced by a pump into the box beneath the float F, which rests upon the surface of the stud. The partition B does not extend so high as the sides ofthebox. Consequently,ifmorestuifisforced into the box after itis filled to a level with the top of partition B,the stuff willescape by gravity over the partition into the'two smaller compartments, each of which is provided with an escape opening in the bottom, the opening 1) leading to the-paper-machine, and the opening E leading back to the reservoir from which the stuff is pumped into the box. The thickness and weight of the paper manufactured depends upon the amount and quality of stuff delivered to the machine in a given time. As uniformity in the paper is essential, and uni- 6o formity in the quality of the stuff is not subject to absolute control, we must control the amount. The object to be obtained, therefore, is to cause the variations in the quality of the stuff to produce corresponding variations in the amount of supply. This has been approximately accomplished heretofore in various ways by means of valves and sliding gates operated by an attendant, and by balances and by floats.

I employ a gate, G, supported by the slida ing rod H. The lower end of the gate rests age-inst the upper side of partition B, and compels the stutf escaping from the box to flow through the narrow openings on either side of the'gate. The sliding rod H'is connected with 5 the float F, so that the one acts upon the other by means of the levers I and J, shaft K, and upright L.

When the stuff being delivered into the box from any cause changes in density or qualityfor example, becomes thicker-it becomes necessary (since the pump supplies a constant quantity) to diminish the supply going to the machine and let the surplus escape, which is done by the action of the fioat upon the gate 8 in the following manner: The thicker stuff does'not run so freely over the partition 13 and dams up, as it were, until the pressure is sufficient to force the same quantity over the partition. This damming up causes the surface of the stufi'in the box to assume a higher level and raise the float. As the float rises it acts upon the levers and shaft before mentioned, and causes the rod H to slide to the left, or toward thevopening which leads to the ma- 5 chine. The sliding rod carries with it the gate, which narrows the outlet to the machine and widens the opening through which the surplus escapes. When the stuff in the box becomes thinner it flows over the partition more easily, Ico the level is reduced, the float falls with the surface of the stufl, and the relative size of the variation in the thickness of the stuff acts to regulate the supply before any part of it can reach the machine.

T is a discharging-gate provided withhandle U, by which it can be raised, sliding in supports 0, attached to the partition B, so as to leave open the aperture Nin the lower side of thepartition ,through which the box may be emptied when not in use or when desired.

' Having thus described generally the purpose and manner of regulating the stuff in papermachines and the operation of my machine as a whole, I. will now explain more fully the relation and operation of the improved parts.

I am aware that floats have been heretofore employed to act by means of a disk or wheel and levers upon a movable gate to vary the size of the outlets. I prefer to dispense with the disk or any equivalent thereof and apply the power from the float to move the rod H, which supports the gate G. I am thus enabled to adjust by means of the thumb-screws P P the gate to any desired position upon the'sliding rod, and in this way secure exact control of the weight of the paper by varying the position of the gate upon the rod.

The lever I may be slotted to admit the end of rod H and work against pins in the rod; or the rod may be slotted to receive the levers. The frame which supports the shaft K is vertically adjustable by set-screw Q. By raising or lowering the shaft, thereby lengthening or shortening the lever I, the variations in the outlets from the stuff-box may be increased or diminished, as desired.

The position of the gate to make paper of different weights may also be varied by securing lever J to upright L at various distances from the float, or by adjusting the gate in different positions upon the sliding support H, or in both ways. As heretofore constructed floats have been made rectangular in form, which prevents their acting quickly to rise and fall with the stuff on which they rest, due in a measure to the adhesion of the thick stuff to the sides of the float.

I have ascertained by long experiment that the best form for a stuff-float is the form shown in the drawings, which is hollow and convexo-convex on the outside. It may be made solid, of some light substance, and convexo-plane, the plane surface being the upper surface, and it may be of any suitable material, though I prefer copper. Such a float rides freely upon the surface of the stuff, and will even respond to the pulsations of the pump, which facilitates the passage of the stuff through the outlets by agitating the gate.

The failure of all attempts to effectually regulate the flow of stuff in paper-machines by means of floats has been largely due to the width of the outlets, which were left the same as in the ordinary stuff-boxes. If the outlets are made narrow, variations in the thickness of the stuff will produce greater variations in the height of the surface of the stufi in the box than they would if the outlets were wider. Consequently the .float is more sensibly and efi'ectually acted upon by slight variations in the quality of the stuff. I prefer to make them narrower byinserting the an gular-shaped pieces It R in the stuif'box, although it may be done. by making the box itself narrower at one end or side. There may also be adjustable slides S, sliding on rod M, to vary the width of the outlets, one for each outlet. By constructing the box so that the inside of the same shall be narrower on the side containing the outlets there is a greater agitation of the stuff on that side, caused by the inward flow from the pump. Settling of the heavier portions of the stuff in front of the gate and outlets is almost wholly prevented, and the stuff is more evenly mixed at the verge of the out.- lets.

What I claim as new, and desire to secure by Letters Patent, is-- 1. In combination with a paper-machine stutf-box, a float, F, suitablyconnected arms or levers, I and J, and sliding rod H, supporting a gate, G, substantially as described, and for the purposes set forth.

2. In a paper-machine, a stuff-regulating float, convexed substantially as described, and for the purposes set forth.

3. A paper-machine stuff-box contracted as to its inner dimensions on the side from which the contents are discharged, substantially as described, and for the purposes set forth.

4. In a paper-machine stuff-box, a regulating-gate adjustable upon a sliding support, substantially as described, and for the purposes set forth. a

5. In a paper-machine stuff-box, the partition B, provided with a discharge-opening, N, in combination with a gate, T, substantially as described, and for the purposes set forth.

In testimony whereof I have hereunto set my hand this 12th day of March, 1883.

CORNELIUS YO one.

Witnesses:

MILO INGALSBE, GRENVILLE M. INGALSBE. 

